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Simplifying
2x2 + -14 = 9
Reorder the terms:
-14 + 2x2 = 9
Solving
-14 + 2x2 = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '14' to each side of the equation.
-14 + 14 + 2x2 = 9 + 14
Combine like terms: -14 + 14 = 0
0 + 2x2 = 9 + 14
2x2 = 9 + 14
Combine like terms: 9 + 14 = 23
2x2 = 23
Divide each side by '2'.
x2 = 11.5
Simplifying
x2 = 11.5
Take the square root of each side:
x = {-3.391164992, 3.391164992}
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